Inhale a sip of any of these two gasses and your voice will change its pitch instantaneously! The speed of sound in these gasses is much higher (helium) or lower (Sulfur Hexafluoride) causing the frequency to change. The wavelength remains…

This is the original electro magnetic spectrum song by Emerson & Wong Yann from Singapore. There is a lot to say about it. Maybe you want to mention the quality of the music, song or singing. This has already been done…

Check out the holo jelly fish coming from your iphone android or windows phone. Cool huh? All you need is some plastic packaging material or CD box, scissors a bit of tape and the required app. Magic? Yes! At least when…

Take so time to get used to the Danish accent. It’s very worthwhile. Checkout the explanation behind fluoresence: exited states of electrons. Also radium glass (where to get it these days?) tonic water and even washing detergenet are lighted with…